Donut Lab's third independent VTT test confirms its solid-state battery retains 97.7% capacity after 240 hours idle. Energy density and cycle life remain untested.

VTT's second independent test shows Donut Lab's solid-state cell delivered 110% capacity at 80°C and survived 100°C discharge ...

Here at Backpacker, we’ve always relied on expert field-testing for our gear reviews. But sometimes, we want to really nerd out over data. Which rain shell can withstand a downpour? And do any of them ...

Donut Lab solid-state battery retest by Finland’s VTT shows capacity rising to 110% at 80C, but weight data is still missing.

The big reveal at CES of a production-ready solid-state battery needs backup.

CNET, the trusted authority for tech reviews and analysis, reveals CNET Lab Awards, a new awards program based entirely on its proprietary product testing insights, equipping readers with vital, ...